Mazda 3: Ignition Coil “A” Primary/Secondary Circuit → Malfunction
P0351 is a generic OBD II trouble code, which means that it means the same thing for the Mazda 3 as it would any other vehicle. It indicates that ignition coil “A” is malfunctioning. It is typically caused by a bad coil pack or wiring harness issue, although there can be other causes as well. … Read more